Intensity Analysis and Fatigue Life Simulation for Connecting Bolt of Shearer Machine Body

Authors

Zhiyong Hao, 1. Mechanical Engineering College of Liaoning Technical University, Fuxin 123000, China;;
Yaolong Lei, 1. Mechanical Engineering College of Liaoning Technical University, Fuxin 123000, China;;
Mao Jun, 1. Mechanical Engineering College of Liaoning Technical University, Fuxin 123000, China;;
Yuan Zhi, 2. China National Coal Mining Equipment Company, Beijing 100011, China;

Abstract

Abstract: To obtain the cutting load spectrum of themachine body connecting bolt, the method of merging unknown quantities and multi calculation combined with the test experiments of shear mechanical properties was used to solve the overdetermined equations of shearer left haulage unit spatial mechanical model The cutting load spectrum of the machine body connecting bolt was taken to run PSD analysis, and the rainflow counting method was used to script the load spectrum. The frequency domain characteristics and time domain continuation characteristics were therefore obtained. The static analysis and fatigue life simulation analysis combined with the bolt load spectrum and the consideration of the impact condition of clearance, indicate that the initial cracking region for bolt cutting fatigue is the preliminary part of the threaded fit, the fatigue life of machine body connecting bolt is 5 625.68 hours. The simulation results show that under specific conditions the simulation can reach the goal of reflecting the cutting fatigue damage evolutionary process of the connecting bolt of shearer machine under real conditions.

Recommended Citation

Hao, Zhiyong; Lei, Yaolong; Jun, Mao; and Zhi, Yuan (2020) "Intensity Analysis and Fatigue Life Simulation for Connecting Bolt of Shearer Machine Body," Journal of System Simulation: Vol. 29: Iss. 7, Article 12.
DOI: 10.16182/j.issn1004731x.joss.201707012
Available at: https://dc-china-simulation.researchcommons.org/journal/vol29/iss7/12

First Page

1481

DOI Link

https://doi.org/10.16182/j.issn1004731x.joss.201707012

Last Page

1488

CLC

TD421

Recommended Citation

Hao Zhiyong, Lei Yaolong, Mao Jun, Yuan Zhi. Intensity Analysis and Fatigue Life Simulation for Connecting Bolt of Shearer Machine Body[J]. Journal of System Simulation, 2017, 29(7): 1481-1488.

DOI

10.16182/j.issn1004731x.joss.201707012